Dr Marina vd Ryst

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Dr Marina vd Ryst Neuropsychologist, QEEG Licensed Diplomate. Specialise in NF Training which teach clients self-regulation of brain wave activity.

Mentoring & supervision: Support professionals in certification; or provide qEEG-reports to monitor treatment outcomes. I am a registered psychologist, I believe that each individual has within them the expertise to overcome their unique problems and realize their dreams.

Join us @ CNSSA Wilderness.
14/10/2026

Join us @ CNSSA Wilderness.

PSSA Conference 2026 | Celebrating Applied PhysiologyIt was a privilege to attend the PSSA Conference 2026, representing...
12/10/2026

PSSA Conference 2026 | Celebrating Applied Physiology
It was a privilege to attend the PSSA Conference 2026, representing the Biofeedback Association of South Africa (BFSA).
Three inspiring days showcased the incredible breadth of physiology, from cellular science and genetics to sport science, neurophysiology, HRV biofeedback and neurofeedback.
What stood out most was the growing interest in connecting brain science, body regulation and human performance—and translating research into meaningful applications for health, prevention and precision care.
A special congratulations to Prof. Peet du Toit and his Neuroscience Research Group at the University of Pretoria, who exemplify this shift by integrating scientific knowledge with practical applications in neurophysiology and human performance.
The future of physiology lies not only in understanding biological systems, but in connecting them and applying that knowledge. Thank you to the organisers, presenters and colleagues who made this such a valuable experience!
đź”— Learn more about the Neuroscience Research Group:
https://www.up.ac.za/institute-for-cellular-and-molecular-medicine/welcome-neuroscience-research-group

This Heritage Day: Remember to connect with that which makes you smile.
24/09/2026

This Heritage Day: Remember to connect with that which makes you smile.

Your brain doesn’t have an “OFF” switch.But it can learn to slow down.Struggling to fall asleep?Waking throughout the ni...
22/09/2026

Your brain doesn’t have an “OFF” switch.
But it can learn to slow down.

Struggling to fall asleep?
Waking throughout the night?
Mind racing when your head finally hits the pillow?

Neurofeedback may help support the brain’s ability to regulate arousal and transition into a more relaxed state.

Through real-time feedback, the brain learns to recognise and regulate its own activity. Over time, this may support:

Easier settling at bedtime
More restful sleep
Better regulation of arousal
Less mental overactivity

The goal isn’t to switch your brain off — it’s to help it regulate more effectively.


Because sometimes, better sleep starts with understanding the brain behind it.

TO CHATGPT or NOT? Now that is the question……A groundbreaking MIT brain-scan study shows relying on ChatGPT weakens crit...
01/09/2026

TO CHATGPT or NOT? Now that is the question……

A groundbreaking MIT brain-scan study shows relying on ChatGPT weakens critical thinking and memory wiring.
A recent MIT study, titled “The Cognitive Cost of Using LLMs,” monitored the brain activity of 54 students using electroencephalography (EEG) devices.
Researchers from the MIT Media Lab discovered that participants who consistently relied on ChatGPT for essay-writing tasks demonstrated significantly lower neural engagement in brain regions tied to memory and analytical reasoning.
Rather than actively synthesizing information, these users increasingly defaulted to a state of 'mental passivity,' struggling to recall their own work shortly after completion and producing increasingly generic, uninspired content.

However, the research also highlights a path forward: AI does not have to be a cognitive detriment. Students who initially worked unaided and later transitioned to using ChatGPT showed an increase in brain activity, suggesting that AI is highly beneficial when used to enhance and scaffold human thought rather than replace it entirely. To avoid a future of algorithmic echo chambers and cognitive decline, experts urge users to remain active, critical participants when collaborating with digital tools.
source: Chow, A. (2025). ChatGPT's Impact On Our Brains According to an MIT Study. TIME.

Harry Brubaker (Bill), MEd, MS, BCN, QEEG-D

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Pretoria
0081

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Tuesday 08:00 - 17:00
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Thursday 08:00 - 17:30
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